我正在开发一个应用程序，该应用程序允许用户从手机的通讯录中选择一个联系人并在 UITableView 中显示该联系人。我使用以下代码来接听联系人；
-(IBAction)pickPhoneContacts:(id)sender //opens phone's address book
{
ABPeoplePickerNavigationController *picker =
[[ABPeoplePickerNavigationController alloc] init];
picker.peoplePickerDelegate = self;
[self presentViewController:picker animated:YES completion:nil];
}
//called when user presses the cancel button in the Address book view controller
- (void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController*)peoplePicker
{
[self dismissViewControllerAnimated:YES completion:nil];
}
//called when user pics up a contact from the phone's address book
- (BOOL)peoplePickerNavigationController:
(ABPeoplePickerNavigationController *)peoplePicker
shouldContinueAfterSelectingPerson:(ABRecordRef)person {
[self displayPerson:person]; //calls displayPerson:(ABRecordRef)person to show contact's information in the app
[self dismissViewControllerAnimated:YES completion:NULL];
return NO;
}
//called when the user selects the property of the contact. This method will not be called in the app but included to complete the implementation of the protocol
- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)
peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier
{
return NO;
}
//Displays the contact name and the contact's primary number in the app's text fields (add contact view controller)
- (void)displayPerson:(ABRecordRef)person
{
NSString* name = (__bridge_transferNSString*)ABRecordCopyValue(person,kABPersonFirstNameProperty); //Extracts the contact's first name from address book & assigns it to a string value
self.contactNameTextFiled.text = name;
NSString* phone = nil;
//Extracts the first phone number among multiple contact numbers from address book & assigns it to a string value
ABMultiValueRef phoneNumbers = ABRecordCopyValue(person,kABPersonPhoneProperty);
if (ABMultiValueGetCount(phoneNumbers) > 0)
{
phone = (__bridge_transfer NSString*)
ABMultiValueCopyValueAtIndex(phoneNumbers, 0);
}
else
{
phone = @"[None]";
}
self.primaryNumberTextField.text = phone;
CFRelease(phoneNumbers);
}
现在的任务是，一旦用户从通讯录中找到联系人，ABPeoplePickerNavigator 应该关闭并立即 MFMessageComposeViewController 应该显示默认消息和选择的联系人号码。这样应用程序的用户应该向选择的联系人号码发送消息。我已将以下代码用于消息撰写视图控制器；
-(void)sendSMS
{
MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];
if([MFMessageComposeViewController canSendText])
{
controller.body = @"Test Message";
controller.recipients = [NSArray arrayWithObjects:@"111222333", nil];
controller.messageComposeDelegate = self;
[self presentViewController:controller animated:YES completion:nil];
}
}
现在请帮助我应该在哪里调用此方法，以便 MFMessageComposeViewController 应该在 ABPeoplePickerNavigationController 关闭后立即出现。